Abstract: A plurality of main-screen function changeover switches (each formed in a shape corresponding to a shape of the main-screen during a picture-in-picture mode of operation) are for selecting a main-screen program from inputs from a plurality of picture reproducing means, and a plurality of sub-screen function changeover switches (each formed in a shape corresponding to a shape of the sub-screen during a picture-in-picture mode of operation) are for selecting a sub-screen program from inputs from a plurality of picture reproducing means, with the plurality of main-screen function changeover switches and the plurality of sub-screen function changeover switches being paired with one another to mimic the main-screen/sub-screen layout format, with each pair allowing selection of a program being produced by a different reproduction means.

Abstract: An improved selection/drive system is incorporated in a magnetic tape recording/reproducing apparatus such that the apparatus may be changed into any of the stop, playback, pause, que and review operations by making use of a single drive gear rotating with a capstan. A sector gear selectively meshes with the drive gear and has first, second and third engaging stubs thereon, and first, second, third and fourth locking members interlocked with operation buttons are selectively engaged with the stubs to lock the sector gear at any of predetermined angles of rotation for establishing the stop, playback, pause, fast-forward or rewind state.